Old 02-26-2011, 07:59 AM #1
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
ChrisNL ChrisNL is offline
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
Default 650nm 300mW red laser diode question

Hi guys, i planned to get a 650nm 300mW red laser diode and want to know if i should buy a glass lens for my aixiz lasermodule, or would the acrylic lens just do fine with it?

Also bought a micro flexdrive V5 for the diode. When i test it, must i have a testload to finetune the flexdriver, or can i just put an ampmeter between de diode's lead to read my values?

tnx in advance.



Last edited by ChrisNL; 02-26-2011 at 08:02 AM.
ChrisNL is offline   Reply With Quote


















Old 02-26-2011, 08:05 AM #2
LaZeRz's Avatar
Class 3B Laser
 
Join Date: Feb 2011
Location: Sydney, Australia
Posts: 2,608
Rep Power: 126
LaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond repute
Send a message via MSN to LaZeRz
LaZeRz LaZeRz is offline
Class 3B Laser
LaZeRz's Avatar
 
Join Date: Feb 2011
Location: Sydney, Australia
Posts: 2,608
Rep Power: 126
LaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond repute
Send a message via MSN to LaZeRz
Default Re: 650nm 300mW red laser diode question

Glass lens from o-like.com or rayfoss.com

dont use a normal lens because it well melt and destroy your laser

if you want max power and a good beam go for jayrob's 650-g1 lens,

search jayrob in the search bar, click on the first post, look at what he has to offer and then clikc on his picture and send him a message regarding his lens if you want them but be warned their over 40 dollars so of your on a budget go with the olikes or the rayfoss ones

Pm me if you want any more info

and btw Welcome to LPF
__________________
Stupid Australian Laser Laws.... Damn you customs

How to remove the PCB from protected cells

My Collection Of Beamshots and Laser Related pics!

Feel free to message me for any help/advice
LaZeRz is offline   Reply With Quote
Old 02-26-2011, 09:32 AM #3
itsmei's Avatar
Class 1M Laser
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 9
itsmei is on a distinguished road
itsmei itsmei is offline
Class 1M Laser
itsmei's Avatar
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 9
itsmei is on a distinguished road
Default Re: 650nm 300mW red laser diode question

I currently have a >280mw red laser and i use an acrylic lense and it is not melting. I do suggest getting a glass lense for added performance. I am going to be getting a glass lense for my laser soon, but at the moment the acyril lense lets me burn and focus, just like any other high power laser.

When i built mine i used a multi meter and i put the LPC-815 laser diode to 416mA. Just be careful when adjusting the pot as it is very sensitive when you put the screwdrive on. If i was you i would just use a multi meter but i suppose a test load would be safer. If you where dealing with expensive diodes then i would suggest building a test load.

Good luck with the laser
__________________
I am currently new to lasers, i have:

LPC 815 DIY 280mW 650nm Click me
2x DIY Red 5mW 650nm
Small 1mW red 650nm
DIY 240mW pulsed red 650nm
DIY Green 5mW 532nm

I am going to be building a 1.5W 445nm laser in a few months. I am also building a 120mW green 532nm.



Click me to Donate to me please Everything helps for me to save and review more lasers
itsmei is offline   Reply With Quote
Old 02-26-2011, 09:49 AM #4
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
ChrisNL ChrisNL is offline
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
Default Re: 650nm 300mW red laser diode question

tnx thats nice to hear that u burn with the acrylic lens, i guess i have no surprises afterwards . A glass lens is always better, i will consider it

According to the Flexdrive V5 manual, i'll solder a bridge so that the output is somewhere between 100-312mA, am i correct?
ChrisNL is offline   Reply With Quote
Old 02-26-2011, 01:09 PM #5
LaZeRz's Avatar
Class 3B Laser
 
Join Date: Feb 2011
Location: Sydney, Australia
Posts: 2,608
Rep Power: 126
LaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond repute
Send a message via MSN to LaZeRz
LaZeRz LaZeRz is offline
Class 3B Laser
LaZeRz's Avatar
 
Join Date: Feb 2011
Location: Sydney, Australia
Posts: 2,608
Rep Power: 126
LaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond repute
Send a message via MSN to LaZeRz
Default Re: 650nm 300mW red laser diode question

if you dont have proper heatsinking then set it at about something like 390-400ma max but if sufficient heatsinking is provided you can run it at 420ma which will get you over 300mw with a jayrob 650-g1 lens, you will also probably get about 300mw with a normal Glass anti reflective lens but if you have the money to spare go with the 650 g1,

also where are you getting the flexdrive from? if straight from dr.lava he can set your diode accurately to your preferred ma

if you have your parts in take a few pics and if not just post the links in and i will have a look at them.

if you need any help feel free to ask me anything

****EDIT: What diode will you be using, the specs im giving you are for a lpc-815 diode, i thought i picked that up somewhere but it seems im just a bit tired ****
__________________
Stupid Australian Laser Laws.... Damn you customs

How to remove the PCB from protected cells

My Collection Of Beamshots and Laser Related pics!

Feel free to message me for any help/advice

Last edited by LaZeRz; 02-26-2011 at 01:11 PM.
LaZeRz is offline   Reply With Quote
Old 02-26-2011, 04:44 PM #6
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
ChrisNL ChrisNL is offline
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
Default Re: 650nm 300mW red laser diode question

I already have the flexdrive so that's not an option, maybe for the second one on short notice.
As far for the diode, i can't tell u for sure. What i do know is that it is a kipkay suitable from itechlasers, the 650nm 300mw.

also bought a couple of flashlights for like 2 euro's (3 dollars) each, and made custom heatsinks for it of aluminum, also one of copper, all for future use.
They all run on 3AAA's. i can tell you they give a hell of a light, hope to replace it with a hell of a laserlight soon








All now is waiting on the diode, and then begin the assembly.
ChrisNL is offline   Reply With Quote
Old 02-26-2011, 05:13 PM #7
Elektrotechniker's Avatar
Class 3B Laser
 
Join Date: Nov 2008
Location: Germany
Posts: 4,241
Rep Power: 24211
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Elektrotechniker Elektrotechniker is offline
Class 3B Laser
Elektrotechniker's Avatar
 
Join Date: Nov 2008
Location: Germany
Posts: 4,241
Rep Power: 24211
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Default Re: 650nm 300mW red laser diode question

Aixiz acrylic lens will do just fine. No risk melting at a power of 300 mW. I think the threshold where it starts melting is ~600mW. Not sure though, but you can use it on lasers below 400 mW
Elektrotechniker is offline   Reply With Quote
Old 02-26-2011, 06:29 PM #8
itsmei's Avatar
Class 1M Laser
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 9
itsmei is on a distinguished road
itsmei itsmei is offline
Class 1M Laser
itsmei's Avatar
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 9
itsmei is on a distinguished road
Default Re: 650nm 300mW red laser diode question

I think i have to agree with you SilverShot, but i would recommend getting a glass lense, so you can get true burning abilities. Just be careful, if you buy an expensive lense, don't burn to close to the lense, it gets smoke and stick black substance on and this can damage the diode.
__________________
I am currently new to lasers, i have:

LPC 815 DIY 280mW 650nm Click me
2x DIY Red 5mW 650nm
Small 1mW red 650nm
DIY 240mW pulsed red 650nm
DIY Green 5mW 532nm

I am going to be building a 1.5W 445nm laser in a few months. I am also building a 120mW green 532nm.



Click me to Donate to me please Everything helps for me to save and review more lasers
itsmei is offline   Reply With Quote
Old 02-26-2011, 06:35 PM #9
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
ChrisNL ChrisNL is offline
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
Default Re: 650nm 300mW red laser diode question

Ok, so it's no problem. Just for the 1.5-2W 450nm diode as next project i will get one

about tuning the flexdrive, is it ok to put a multimeter between the diode's lead to read and set my mA?
ChrisNL is offline   Reply With Quote
Old 02-26-2011, 06:44 PM #10
Elektrotechniker's Avatar
Class 3B Laser
 
Join Date: Nov 2008
Location: Germany
Posts: 4,241
Rep Power: 24211
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Elektrotechniker Elektrotechniker is offline
Class 3B Laser
Elektrotechniker's Avatar
 
Join Date: Nov 2008
Location: Germany
Posts: 4,241
Rep Power: 24211
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Default Re: 650nm 300mW red laser diode question

Quote:
Originally Posted by ChrisNL View Post
Ok, so it's no problem. Just for the 1.5-2W 450nm diode as next project i will get one

about tuning the flexdrive, is it ok to put a multimeter between the diode's lead to read and set my mA?
No. That could damage the diode. Use a test load.
Elektrotechniker is offline   Reply With Quote
Old 02-26-2011, 07:01 PM #11
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
ChrisNL ChrisNL is offline
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
Default Re: 650nm 300mW red laser diode question

Quote:
Originally Posted by Silvershot View Post
No. That could damage the diode. Use a test load.
Can i build my own? Because i see more then one type testload, also selfmade by some people.

Always need that 1 Ohm resistor i see, but how do i know if i set de flexdrive @ 300mA, the current is the same when i put on the diode? (sory i'm new with this)
ChrisNL is offline   Reply With Quote
Old 02-26-2011, 08:52 PM #12
LaZeRz's Avatar
Class 3B Laser
 
Join Date: Feb 2011
Location: Sydney, Australia
Posts: 2,608
Rep Power: 126
LaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond repute
Send a message via MSN to LaZeRz
LaZeRz LaZeRz is offline
Class 3B Laser
LaZeRz's Avatar
 
Join Date: Feb 2011
Location: Sydney, Australia
Posts: 2,608
Rep Power: 126
LaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond repute
Send a message via MSN to LaZeRz
Default Re: 650nm 300mW red laser diode question

Silvershot, cant you just connect the multimeter straight to the driver and tune it with the pot to your preferred ma and then short the driver and solder the leads on?

Btw nice housing Chris, how did you drill those out?, also where did you find the meaterils, ive been looking everywhere but i cant find a SOLID peice of aluminum or copper
__________________
Stupid Australian Laser Laws.... Damn you customs

How to remove the PCB from protected cells

My Collection Of Beamshots and Laser Related pics!

Feel free to message me for any help/advice
LaZeRz is offline   Reply With Quote
Old 02-26-2011, 09:08 PM #13
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 85
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
anselm anselm is offline
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 85
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
Default Re: 650nm 300mW red laser diode question

@LaZerZ:
you'd think so, and quite rightfully. Problem is:
1. If you slip with the Multimeter leads and break contact while the driver is being
powered, the Flexdrive can very easily be damaged, being powered without a load on it.
2. Even if you make sure that contact is good all the time (solder the DMMs probes to the driver ),
the DMM doesn't simulate the voltage drop of the real diode, and so you end up
measuring a current that is different from what it will be once the diode is connected.
Effectively, your measurement will be inaccurate, you will have set up the driver with a "wrong" current.

The difference might not be much, but when you try to push the diode to it's very edge,
it could mean the difference between a happy diode and a dead diode.
__________________
I'm away from home and lasers until late July!
Kryton Groove switch workaround
Get your warning label stickers 0.90$ or less, depending on qty
The INDEX to the LPF
Add to it, and spam it from your signature, too!
Beware! Scams a-plenty, don't be a sucker!
___________________________
ATTENTION
This forum is fullfilled mit special electronische equippment. Fingergrabbing and pressing the cnoeppkes from the lasers is
allowed for die experts only! So all the “lefthanders” stay away and do not disturben the brainstorming von here working
intelligencies. Otherwise you will be out thrown and kicked anderswhere! Also: please keep still and only watchen astaunished the blinkenlights.

Last edited by anselm; 02-26-2011 at 09:11 PM.
anselm is offline   Reply With Quote
Old 02-26-2011, 09:53 PM #14
LaZeRz's Avatar
Class 3B Laser
 
Join Date: Feb 2011
Location: Sydney, Australia
Posts: 2,608
Rep Power: 126
LaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond repute
Send a message via MSN to LaZeRz
LaZeRz LaZeRz is offline
Class 3B Laser
LaZeRz's Avatar
 
Join Date: Feb 2011
Location: Sydney, Australia
Posts: 2,608
Rep Power: 126
LaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond reputeLaZeRz has a reputation beyond repute
Send a message via MSN to LaZeRz
Default Re: 650nm 300mW red laser diode question

K thanks for sorting that out +1 for u

where can you get a cheap test load from? and also how do you use them?
__________________
Stupid Australian Laser Laws.... Damn you customs

How to remove the PCB from protected cells

My Collection Of Beamshots and Laser Related pics!

Feel free to message me for any help/advice
LaZeRz is offline   Reply With Quote
Old 02-26-2011, 10:31 PM #15
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
ChrisNL ChrisNL is offline
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
Default Re: 650nm 300mW red laser diode question

Quote:
Originally Posted by LaZeRz View Post
Silvershot, cant you just connect the multimeter straight to the driver and tune it with the pot to your preferred ma and then short the driver and solder the leads on?

Btw nice housing Chris, how did you drill those out?, also where did you find the meaterils, ive been looking everywhere but i cant find a SOLID peice of aluminum or copper
Thanks for the compliment.

Well, at work i have some aluminum pulleys for different type's sawmachines, and fortunately we have some with exact 12mm holes in the center. So just get some off on the milling machine, and there u have your heatsink

Maybe at a local machine store nearby the have the same sort of pulleys with already 12mm holes in the center.



That looks like the one i used for this project. As far for the copper heatsink, i just tapped one out of an stock Intel cooler. but then u have only 24mm diameter

Last edited by ChrisNL; 02-26-2011 at 10:55 PM.
ChrisNL is offline   Reply With Quote
Old 02-27-2011, 07:38 AM #16
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
ChrisNL ChrisNL is offline
Junior Member
 
Join Date: Feb 2011
Location: Netherlands, Asperen
Posts: 19
Rep Power: 0
ChrisNL is on a distinguished road
Default Re: 650nm 300mW red laser diode question

Quote:
Originally Posted by LaZeRz View Post
K thanks for sorting that out +1 for u

where can you get a cheap test load from? and also how do you use them?
Maybe for your testload you want to checkout http://laserpointerforums.com/f67/he...oad-60993.html
ChrisNL is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 11:30 PM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC